论文标题
热诱导的非平衡的双重主要普遍性
Dual Majorana universality in thermally induced nonequilibrium
论文作者
论文摘要
我们证明，具有Majorana零模式的非平衡纳米镜系统接受了特殊类型的通用性，这些通用性无法分类为严格运输或严格的热力学性质。为了揭示这种主要的普遍性，我们探索了一个量子点的纯热非平衡状态，该量子点的低能自由度受Majorana零模式的控制。具体而言，量子点耦合到拓扑超导体，支持Majorana零模式，以及两个具有相同化学势但温度不同的正常金属接触。结果表明，该设置中的主要纳（Majorana）普遍性是双重的：它均在电流的响应中存储，仅通过温度差和量子点可压缩性而激发。后者被定义为相对于化学势的量子点颗粒数的衍生物，并形成通用的主要比率，并具有适当的电流导数，该电流在纯粹的热性质的非平衡状态下流动。
We demonstrate that nonequilibrium nanoscopic systems with Majorana zero modes admit special kind of universality which cannot be classified as of strictly transport or strictly thermodynamic nature. To reveal such kind of Majorana universality we explore purely thermal nonequilibrium states of a quantum dot whose low-energy degrees of freedom are governed by Majorana zero modes. Specifically, the quantum dot is coupled to a topological superconductor, supporting Majorana zero modes, as well as to two normal metallic contacts with the same chemical potentials but different temperatures. It is shown that the Majorana universality in this setup is dual: it is stored inside both the response of the electric current, excited by exclusively the temperature difference, and the quantum dot compressibility. The latter is defined as the derivative of the quantum dot particle number with respect to the chemical potential and forms a universal Majorana ratio with a proper derivative of the electric current that flows in nonequilibrium states of purely thermal nature.
